Regarding the original question, there doesn't seem to be any provision for the gyro effects of the fan(s), which must be huge?
There are gyroscopic couples, but only when the aircraft is pitching or yawing. Huge? I don't think so in transport aircraft, where the rotating mass is small in relation to total mass. But the design of the engine mounts has to allow for it.
In an earlier post, somone supposed that 2-spool engines have counter-rotating spools to reduce that effect.
AFAIK, the only counter-rotator is the Pegasus in the Harrier & AV-8. The rotating masses are probably a higher percentage of the total than in any other type. The prototype engines had same rotation, but it was changed very early on to the counter-rotating spec purely to reduce the gyroscopic effects.